I have the same exact problem! I have replaced the convergence board, and the power supply board (the one the AC cord plugs into) I have also resoldered the flyback transformer, AND checked the 3 fuses next to the flyback with a meter...and still to no avail.... I do have convergence and auto convergence available as options in the menu, and in the service screen, but on manual converge mode, the crosshairs will not move, and on auto convergence mode, it will strobe red once, then show a full red screen (concave at top and bottom) and go straight back to menu with no improvement! please help!

This is what is known as convergence..(very common)... first question DO you have the "CONVERGENcE" option in your setup menu?.... if you dont there may be a special fuse issue... if not then more than likely it is what is known as convergence power supply issue. you have complete loss of convergence?

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These sets need to have all three colors - RED - BLUE - GREEN - lined up correctly on the screen in order for the picture to look normal. This is called convergence.

When its out of alignment the video will look 3-D, wavy, distorted, etc. Most of the time you just need to adjust your convergence in the menu. If you cannot adjust it in the menu - then your convergence is broken and needs to be repaired. Convergence problems are very common on all Projection TV sets including Sony, Samsung,JVC,Philip Magnavox,Panasonic,Akai,Pioneer, Hitachi,Mitsubishi,Zenith and others. You can get moreinformation and a DIY convergenece repair kit with instructions from the link below.

This is a very common failure on Projection sets. Its called a convergence problem.
You may have one or more of the following symptoms.
Screen looks 3D Colors don't line up One or more colors can't be adjusted when using the convergence menu. Screen is bowed or warped. No Audio / No Video - Makes Chirping SoundsYou can see some examples and find a fix here...

Hi there, this is what we call in the industry convergence board failure. this board regulate the rgb and keeps everything in order so the picture looks nice and clean. when this board starts to malfunction, what you are witnessing is usually the result. I suggestrepairing this convergence board. this will fix the 3-d effect.

Go to menu ,now to setup when in set up do you see convergence? If convergence is missing in menu it is a open fuse,only it does not look like fuse ,They look more like small square capaitors brown, they will be right next to flyback transfomer FL231 (3) of them in a roll it will be the middle one,you can take needle nose plyers and pull top up on fuses.

The issue you are having could be caused by your television needing the convergence adjusted. During production your televison has the three picture tubes that are converged to form a single image on the screen. Over time these can come out of adjustment.
If you go to this link http://download.jazel.net/misc/filecache/b8/b89bca4c8b740315d378e8ed030461c5_1227-517SeriesOwnersGuide.pdf and check pages 57 and 58, it gives you a very detailed guide on adjusting your convergence. I am aware this model number is slightly different than yours, but I own a 47" Mitsubishi and this is the exact procedure we use to do our convergence so I am confident it is fairly universal.